Herb grinder



FIG. 1 is a front elevational view of a herb grinder according to our new design;

FIG. 2 is a side elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a top perspective view thereof;

FIG. 6 is a bottom perspective view thereof;

FIG. 7 is an exploded, top perspective view thereof; and,

FIG. 8 is an exploded, bottom perspective view thereof.

The broken lines shown in the Figures are for illustrative purposes only and form no part of the claimed design. 

CLAIM The ornamental design for a herb grinder, as shown and described. 